[PATCH v4] dt-bindings: mmc: dwcmshc-sdhci: Fix resets array validation

[hehuan1]

From: Huan He <hehuan1@xxxxxxxxxxxxxxxxxx>

The binding defines tuple-style reset-names items for some
compatibles, which implicitly enforces a fixed array length
via JSON Schema.

Defining global maxItems for resets and reset-names causes these
constraints to be intersected via allOf, resulting in an effective
minItems equal to the global maxItems. This leads to dtbs_check
failures reporting reset arrays as too short, even when the DTS
provides the correct number of entries.

Fixes: 30009a21f257 ("dt-bindings: mmc: sdhci-of-dwcmshc: Add Eswin EIC7700")
Co-developed-by: Pritesh Patel <pritesh.patel@xxxxxxxxxxxxxx>
Signed-off-by: Pritesh Patel <pritesh.patel@xxxxxxxxxxxxxx>
Signed-off-by: Huan He <hehuan1@xxxxxxxxxxxxxxxxxx>

---
Changes in v4:
  - Add Co-developed-by tag for Pritesh Patel

Changes in v3:
  - Add minItems: 5 in 'else' branch for non-Eswin devices

Changes in v2:
  - Keep the global maxItems constraints and add minItems: 4 for both
    resets and reset-names properties
  - Update commit message

- Link to v1: https://lore.kernel.org/all/20260211094736.88-1-hehuan1@xxxxxxxxxxxxxxxxxx/
---
 Documentation/devicetree/bindings/mmc/snps,dwcmshc-sdhci.yaml | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Documentation/devicetree/bindings/mmc/snps,dwcmshc-sdhci.yaml b/Documentation/devicetree/bindings/mmc/snps,dwcmshc-sdhci.yaml
index 7e7c55dc2440..5cebe5eb1efb 100644
--- a/Documentation/devicetree/bindings/mmc/snps,dwcmshc-sdhci.yaml
+++ b/Documentation/devicetree/bindings/mmc/snps,dwcmshc-sdhci.yaml
@@ -50,9 +50,11 @@ properties:
     maxItems: 1
 
   resets:
+    minItems: 4
     maxItems: 5
 
   reset-names:
+    minItems: 4
     maxItems: 5
 
   rockchip,txclk-tapnum:
@@ -146,6 +148,7 @@ allOf:
     else:
       properties:
         resets:
+          minItems: 5
           maxItems: 5
         reset-names:
           items:
-- 
2.25.1